Chlorine melts at 172 k what is chlorines melting point in C

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Answer 1

Answer: <HTML><META HTTP-EQUIV="content-type" CONTENT="text/html;charset=utf-8"> K = 273.15 + C K = 172 so substitute 172 = 273.15 + C C = 172 - 273.15 = -101.15 </DIV>

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Why is every solution a mixture and not every mixture is a solution?

If 3/5 < x < 67%, which of the following could be the value of x?

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Answer:

2/3, or .66

Explanation:

the answer is. 2/3 .33

Which substance yields H+(aq)as the only positive ion in an aqueous solution

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According to the Bronsted-Lowry Theory, that is an Acid.

Of the choices below, which is true for the relationship shown? a. It is Ka for the acid H3P2O72−. b. It is Kb for the acid H3P2O72−. c. It is Ka for the acid H2P2O72−. d. It is Kb for the acid H2P2O7

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The expression for the Ka for the given acid is:

Ka = [H2P2O7^2-] [H3O+] /[H3P2O7^2-]

Ka is the acid dissociation constant or the acidity constant. It is a measure of the acid strength when in solution. It is an equilibrium constant for the dissociation of the acid.

Answer:

It is Ka for the acid H3P2O72−.

Explanation:

the molar mass off O2 is 32.0 g/mol. what mass in tye grams of 02 is Required to react completely with 4.00 mol mg

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The balanced reaction is:

2Mg + O2 = 2MgO

We are given the amount of magnesium to be reacted with O2. This will be the starting point of the calculations.

4.00 g C3H8 ( 1 mol Mg/ 24.31 g Mg ) ( 1 mol O2 / 2 mol Mg ) ( 32.0 g O2 / 1 mol O2 ) = 2.63 g O2

Answer:

64.0 grams!

Explanation:

Use the mole ratios

GIVING BRAINLIEST!!! A student observes a beaker of room temperature water resting on a table. She states that the beaker of water does not have any energy. Which statement below is accurate regarding her observation?a. She is correct because the beaker of water is not moving.

b. She is incorrect because the beaker of water has thermal energy.

c. She is incorrect because all water contains hydrogen and oxygen.

d. She is correct because the beaker of water is at room temperature.

Answers

Answer:

Explanation:

im thinking because the water is a room temperature there shouldnt be anm immence amount og heat energy for it to have a good amount of energy tho i could be wrong because its not moving it could have no energy.

Answer: please tell me i have this exact thing on a test rn i need the answer

Explanation:

What volume of a 2.00 M stock solution of NaOH is needed to prepare 150. mL of 0.40 M solution?

Answers

To find the volume ratios we say m1v1=m2v2

where m1 is the initial molarity, m2 the final molarity, v1 the initial volume, v2 the final volume.in this question m1=2.00M, m2=0.40M v2=150ml

Therefore the expression becomes: 2.00M×v1=0.40M×150mL

v1=(0.40M×150mL)/2.00M

=30mL

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